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Patents for H. K. Parsons
Patents 1 - 2 of 2
First set of recordsLast set of records
NumberDatePatenteeTitleType
1,282,037Oct. 22, 1918L.W. BugbeeGrinding Machine
1,408,339Feb. 28, 1922L.W. BugbeeProtractor for Optical Workprotractors
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